Package io.opentelemetry.sdk.internal

Class ComponentRegistry<V>

java.lang.Object

io.opentelemetry.sdk.internal.ComponentRegistry<V>

Type Parameters:

V - the type of the registered value.

public final class ComponentRegistry<V>
extends java.lang.Object

Component (tracer, meter, etc) registry class for all the provider classes (TracerProvider, MeterProvider, etc.).

Components are identified by name, version, and schema. Name is required, but version and schema are optional. Therefore, we have 4 possible scenarios for component keys:

1. Only name is provided, represented by componentByName
2. Name and version are provided, represented by componentByNameAndVersion
3. Name and schema are provided, represented by componentByNameAndSchema
4. Name, version and schema are provided, represented by componentByNameVersionAndSchema

This class is internal and is hence not for public use. Its APIs are unstable and can change at any time.

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.Set<V>	allComponents
private java.util.Map<java.lang.String,V>	componentByName
private java.util.Map<java.lang.String,java.util.Map<java.lang.String,V>>	componentByNameAndSchema
private java.util.Map<java.lang.String,java.util.Map<java.lang.String,V>>	componentByNameAndVersion
private java.util.Map<java.lang.String,java.util.Map<java.lang.String,java.util.Map<java.lang.String,V>>>	componentByNameVersionAndSchema
private java.util.function.Function<InstrumentationScopeInfo,V>	factory
private java.lang.Object	lock

Constructor Summary

Constructors

Constructor	Description
ComponentRegistry(java.util.function.Function<InstrumentationScopeInfo,V> factory)

Method Summary

Modifier and Type	Method	Description
private V	buildComponent(InstrumentationScopeInfo instrumentationScopeInfo)
V	get(java.lang.String name, java.lang.String version, java.lang.String schemaUrl, Attributes attributes)	Returns the component associated with the name, version, and schemaUrl.
java.util.Collection<V>	getComponents()	Returns a Collection view of the registered components.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

componentByName

private final java.util.Map<java.lang.String,V> componentByName

componentByNameAndVersion

private final java.util.Map<java.lang.String,java.util.Map<java.lang.String,V>> componentByNameAndVersion

componentByNameAndSchema

private final java.util.Map<java.lang.String,java.util.Map<java.lang.String,V>> componentByNameAndSchema

componentByNameVersionAndSchema

private final java.util.Map<java.lang.String,java.util.Map<java.lang.String,java.util.Map<java.lang.String,V>>> componentByNameVersionAndSchema

lock

private final java.lang.Object lock

allComponents

private final java.util.Set<V> allComponents

factory

private final java.util.function.Function<InstrumentationScopeInfo,V> factory

Constructor Detail

ComponentRegistry

public ComponentRegistry(java.util.function.Function<InstrumentationScopeInfo,V> factory)

Method Detail

get

public V get(java.lang.String name,
             @Nullable
             java.lang.String version,
             @Nullable
             java.lang.String schemaUrl,
             Attributes attributes)

Returns the component associated with the name, version, and schemaUrl. Attributes are not part of component identity. Behavior is undefined when different Attributes are provided where name, version, and schemaUrl are identical.

buildComponent

private V buildComponent(InstrumentationScopeInfo instrumentationScopeInfo)

getComponents

public java.util.Collection<V> getComponents()

Returns a Collection view of the registered components.

Returns:

a Collection view of the registered components.